Company lists · Data refreshed September 2026

Top 25 Building decarbonization companies based in Paris, France

Name: Building decarbonization companies based in Paris, France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 259 companies tracked

RevenueBase identified 259 building decarbonization companies headquartered in Paris, France as of September 2026 and tracks 3,314 professional contacts across them, including 1,465 with verified work emails. Paris is the largest hub.

This list covers building decarbonization companies headquartered in Paris, France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

259Companies

3,314Contacts tracked

1,465Verified emails

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The 25 largest building decarbonization companies based in Paris, France

Ranked by team size

Top 25 of 259 building decarbonization companies based in Paris, France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building decarbonization companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Greenflex	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	390 contacts →
	Indirect evidence “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Source: RevenueBase Database · checked Sep 16, 2026
2	R3	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	155 contacts →
	Indirect evidence “Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.” Source: RevenueBase Database · checked Sep 16, 2026
3	Sénova	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	139 contacts →
	Indirect evidence “Sénova est "le partenaire de la rénovation énergétique de votre habitat".” Source: RevenueBase Database · checked Sep 16, 2026
4	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	105 contacts →
	Indirect evidence “Aujourd’hui ARP Astrance regroupe plus de 100 collaborateurs et intervient en tant que conseil, AMO, project manager, BE environnement, écologue sur les projets en développement…” Source: RevenueBase Database · checked Sep 16, 2026
5	Sinteo	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	96 contacts →
	Indirect evidence “Depuis 2008, nous accompagnons nos clients dans la triple révolution – environnementale, digitale et des usages – qui bouleverse l’immobilier.” Source: RevenueBase Database · checked Sep 16, 2026
6	ROZO	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	89 contacts →
	Indirect evidence “ROZO - Votre partenaire pour une décarbonation réussie!” Source: RevenueBase Database · checked Sep 16, 2026
7	TERAO	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	87 contacts →
	Indirect evidence “Crée en 1993, TERAO est un pionner de l’immobilier durable, fort d’une équipe pluridisciplinaire d’une quarantaine d’ingénieurs, présent en France et à l’international.” Source: RevenueBase Database · checked Sep 16, 2026
8	Oasiis	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	87 contacts →
	Indirect evidence “QUI SOMMES NOUS?” Source: RevenueBase Database · checked Sep 16, 2026
9	Erese Groupe Scet HTC	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	62 contacts →
	Indirect evidence “ERESE \| Groupe SCET HTC est un bureau d’études spécialisé dans les énergies, les réseaux et l’environnement.” Source: RevenueBase Database · checked Sep 16, 2026
10	Sevaia	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	58 contacts →
	Partial evidence “Sevaia brings you its expertise and advice in energy efficiency, environmental performance of buildings, and responsible finance.” Source: RevenueBase Database · checked Sep 16, 2026
11	Global Buildings Performance Network Gbpn	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	n/a	57 contacts →
	Partial evidence “The Global Buildings Performance Network (GBPN) is a globally organised and regionally focused organisation whose mission is to provide policy expertise and technical assistance…” Source: RevenueBase Database · checked Sep 16, 2026
12	Groupe Herve S.A	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	1,001-5,000	57 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
13	ACE Energie	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	56 contacts →
	Indirect evidence “ACE Énergie est une société de services en d'efficacité énergétique qui propose 3 offres :=> Offre de financement de projet : Nous participons au financement de projets…” Source: RevenueBase Database · checked Sep 16, 2026
14	Groupe Optim	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	56 contacts →
	Indirect evidence “SMART WORKPLACE SOLUTIONS L’équipe Optim, Expérimentée et Performante.” Source: RevenueBase Database · checked Sep 16, 2026
15	Alter Watt	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	56 contacts →
	Indirect evidence “Alter Watt est un bureau d’études énergétiques, né de la conviction que la transition écologique est un enjeu majeur des années à venir.” Source: RevenueBase Database · checked Sep 16, 2026
16	Ithaque	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	56 contacts →
	Indirect evidence “Ithaque a été créée avec la conviction que la rénovation énergétique des maisons est un enjeu central de la transition écologique.” Source: RevenueBase Database · checked Sep 16, 2026
17	Crust Energie	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	55 contacts →
	Indirect evidence “Crust énergie réalise des travaux rénovation énergétique et les finance à 100%.” Source: RevenueBase Database · checked Sep 16, 2026
18	Sobre Energie	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	53 contacts →
	Indirect evidence “Sobre Energie, est une solution Deepki, dédiée à l’Energy Management et à l’accompagnement des entreprises et des collectivités dans la sobriété énergétique de leurs parcs…” Source: RevenueBase Database · checked Sep 16, 2026
19	Woodeum By Cogedim	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect evidence “Pour que chacun puisse vivre dans un environnement plus naturel, plus beau et plus agréable, nous imaginons, développons et commercialisons des immeubles #ecologiques de nouvelle…” Source: RevenueBase Database · checked Sep 16, 2026
20	AKTEO	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	40 contacts →
	Indirect evidence “AKTEO est la société de conseil, d’ingénierie et de formation en décarbonation.” Source: RevenueBase Database · checked Sep 16, 2026
21	Deerns France	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	39 contacts →
	Partial evidence “Deerns is an international, independent consulting and engineering firm specialized in MEP design, in energy strategies and sustainable performance of buildings, in health and…” Source: RevenueBase Database · checked Sep 16, 2026
22	Iboco France	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	501-1,000	36 contacts →
	Indirect evidence “Iboco, spécialiste en cheminement de l’énergie, est un acteur incontournable sur les segments du Résidentiel, du Tertiaire, de l’Industrie et de l’Infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
23	Omnegy By Epsa	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	34 contacts →
	Indirect evidence “OMNEGY est un cabinet de conseil en énergie pour les entreprises, spécialiste des achats et des contrats d'énergie.” Source: RevenueBase Database · checked Sep 16, 2026
24	Wo2	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “WO2 est spécialisée dans le développement d'immeubles de bureaux bas carbone en bois massif CLT.” Source: RevenueBase Database · checked Sep 16, 2026
25	Granular Energy	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence “Granular Energy is a start-up providing market solutions for 24/7 clean energy.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: building decarbonization companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names building decarbonization companies.
Partial evidence: Its own public description names part of building decarbonization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building decarbonization companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 259 building decarbonization companies based in Paris, France

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Building decarbonization companies based in Paris, France at a glance

As of Sep 16, 2026

44.2%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Paris

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

153

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 259 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among building decarbonization companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Paris, France whose own description of what they do matches “building decarbonization companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names building decarbonization companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among building decarbonization companies, and records with no verified work email. Companies headquartered outside Paris are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,465 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Building decarbonization companies by metro in France

Building decarbonization companies in Paris259
Building decarbonization companies in Lyon75
Building decarbonization companies in Toulouse37

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names building decarbonization companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many building decarbonization companies are there based in Paris, France?

RevenueBase identified 259 building decarbonization companies headquartered in Paris, France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Greenflex, headquartered in Paris, tops this list with the largest team on record.

Which city has the most building decarbonization companies?

Paris leads with 259 headquartered companies, followed by Lyon (75) and Toulouse (37).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,465 verified decision-maker contacts tracked across these 259 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.